Airport Security

On average you can breeze through our security checkpoints between 5-20 minutes.

Our checkpoints are open 21 hours a day, from 3:45 a.m. to 1 a.m.

*Please note that TSA screen times may be subject to change depending on TSA operations and seasonal changes.

TSA recommends arriving at the airport 2 hours before your flight, but passenger flow at ONT averages under an hour.

This varies by Terminal and day of the week, but mornings from 5am-9am (T4) and evenings from 7pm – 11pm (T2) are fairly busy. It’s always best to check Arrivals and Departures.

Planning ahead and packing appropriately will make it easier for you to get through security. TSA provides a list of acceptable items for both checked and carry-on luggage.

Yes. TSA offers a PreCheck program that streamlines the security process. You can apply for PreCheck using TSA’s online portal. Please note, TSA may not always have the Pre-Check lane open due to passenger flow or security directives.

To protect travelers and staff, TSA’s national security screening guidelines are followed, including passenger and carry on baggage screening. For more information on the screening process, read TSA’s security screening procedures.

We want every passenger to have a positive experience. To help travelers with disabilities navigate through the Airport, we’ve created several resources. If you have questions about security policies for medical equipment and medications, refer to TSA’s guidelines and exemption policy.

No. For understanding on the proper way to travel with these items please visit: https://www.tsa.gov/travel/security-screening/whatcanibring/all

Yes, it is! You can sign up at the airport with one of the CLEAR kiosks before your next flight.

They are open in both Terminal 2 and Terminal 4, every day from 4:00 am - 8:00 pm.